double getQScale(RateControlEntry *rce, double rateFactor);
double rateEstimateQscale(Frame* pic, RateControlEntry *rce); // main logic for calculating QP based on ABR
double getQScale(RateControlEntry *rce, double rateFactor);
double rateEstimateQscale(Frame* pic, RateControlEntry *rce); // main logic for calculating QP based on ABR